Class: Klear::File

Inherits:
Object
  • Object
show all
Defined in:
lib/klear/file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path = nil) ⇒ File

Returns a new instance of File.



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# File 'lib/klear/file.rb', line 7

def initialize path = nil
  @path = path
end

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/klear/file.rb', line 5

def path
  @path
end

Instance Method Details

#dimensions ⇒ Object 



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# File 'lib/klear/file.rb', line 19

def dimensions
  @dimensions ||= info['geometry']
end

#frame_count ⇒ Object 



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# File 'lib/klear/file.rb', line 23

def frame_count
  @frame_count ||= (zipfile.dir.entries("/frames").size)
end

#frames ⇒ Object 



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# File 'lib/klear/file.rb', line 27

def frames
  @frames ||= (
    data = zipfile.read("cache/frames.bin")
    Klear::Frames.new(dimensions[:columns], dimensions[:rows], data)
  )
end

#info ⇒ Object 



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# File 'lib/klear/file.rb', line 11

def info
  @info ||= YAML.load(zipfile.read('META-INF/kle.yml'))
end

#manifest ⇒ Object 



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# File 'lib/klear/file.rb', line 15

def manifest
  @manifest ||= YAML.load(zipfile.read('META-INF/MANIFEST.MF'))
end

#motors ⇒ Object 



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# File 'lib/klear/file.rb', line 34

def motors
  @motors ||= (
    #begin 
    #  data = zipfile.read("cache/motors.bin")
    #  Klear::Motors.new(dimensions[:columns], data)
    ##rescue Errno::ENOENT => e
    #  puts " ~~ empty motors cache (#{e})"
    #  Klear::Motors.new(dimensions[:columns])
    #end

    motors = frames.all.map do |frame|
      (frame.row 0) # convention: row zero is the motors
    end
    Klear::Motors.new(dimensions[:columns], motors)

    #animations = {}
    #frames.each do |frame, no|
    #  puts "frame: ##{no}"
    #  row = (frame.row 0) # convention: row zero is the motors
#
#        # scale input onto manta geometry
#        low, high = @config[:low], @config[:high]
#        d = (high - low).to_f
#
#        row.each_with_index do |v_in, x|
#          v_out = (low + d * (v_in.value.to_f / 0xffff)).to_i
#          (animations[x+1] ||= []) << v_out
#        end
#      end
  )
end